Five billionaires from Maryland is part of a $16 trillion club — the estimated net worth of the ultra-wealthy named Forbes’ 39th annual World’s Billionaires list released Tuesday. The richest of them is Elon Musk,

The billionaires club has never been bigger—or richer. Here’s who’s up, who’s down, who’s off the list and why it matters more than ever.

There are now more than 3,000 billionaires in the world, according to Forbes' annual ranking of the wealthiest people. They collectively hold about $16.1 trillion in wealth.